BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 131 50.8%
2 United States 60 23.3%
3 Germany 35 13.6%
4 Taiwan 14 5.4%
5 Ukraine 3 1.2%
6 Japan 3 1.2%
7 Russia 3 1.2%
8 Belarus 2 0.8%
9 Brazil 2 0.8%
10 Canada 1 0.4%
11 Singapore 1 0.4%
12 Netherlands 1 0.4%
13 United Kingdom 1 0.4%
14 Australia 1 0.4%